phonon video player, application stopped at seeking position

[AlexKolosow]

Sorry for my bad English.

We have client - server system, client received video file (.mov, .mp4) from server, then the file was placed in QBuffer, (no saving file to drive)
Then call:

m_pmedia->setCurrentSource(m_pBuffer);

m_pmedia->setCurrentSource(m_pBuffer);

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After this we can playing the video.
But from time to time, at seeking position by call

m_pmedia->seek(n)

m_pmedia->seek(n)

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application "hangs", i.e. not responding.

what could be wrong?

З.Ы. I think problem is in playing from buffer, with playing from file from drive all ok.

P.S. We using Ubuntu 12.04

Update: Problem still exist, but if we call

m_pmedia->pause()

m_pmedia->pause()

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before

m_pmedia->seek()

m_pmedia->seek()

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life becomes easier, the grass is getting greener
and the application hangs less